2021 Civic. 8k Oil Change. Severe fuel dilution.
- Thread starter Reverie
- Start date
The oil itself has nothing to do with the amount of dilution the engine produces. Get the cheapest oil and change it every 4-5K miles. $20 for a jug of Walmart oil every 4K vs. $58 for the Amsoil every 8k is a no brainer.
How about using a mid level oil, and use some Walmart/Amazon Castrol Euro Car 5w-30, makes far far more sense with a $38,000 car/SUV then " the cheapest oil". You want a quality oil to buffer oil dilution, you don't want the "cheapest oil".
K
Its civic, cheapest Honda you can buy. How is Supertech is not a quality oil, it has dexos gen3, is it not enough for Honda?
Its civic, cheapest Honda you can buy. How is Supertech is not a quality oil, it has dexos gen3, is it not enough for Honda?
While the type and amount of VM affect temporary shear thinning, at some point the amount of fuel in the oil is just a simple dilution of a more viscous fluid by one that is thinner. In that respect the only thing that’s going to help you is viscosity. Dilution is dilution.
There’s little point in using a boutique oil here. Just use something of decent quality and change it more frequently.
There’s little point in using a boutique oil here. Just use something of decent quality and change it more frequently.
Work commute is 80% of the mileage on the car. 30 miles one way and is a 50/50 mix of city and then high speed interstate driving. I am also aggressive on the throttle from lights.
Just fine without fuel dilution, but WITH bad fuel dilution your going to skimp on $10 extra? I would think Castrol Euro Car is better.
The only problem is that “better brand” oil will not help with fuel dilution. Extra cash be used to shorten OCI instead
I have been on both the Civic gen10 and gen11 forums for years as well as the CRV forum. IMHO, the Civic forums are primarily younger and their main interests seem to be in modifications and tuning (which often turn into warranty debacles) usually all about tinting, wheels, downpipe and exhaust as well as intake mods for more turbo sound. The CRV forum moderators have shut down any and all discussions on fuel dilution, declaring that Honda has resolved this issue. Real world, there are hundreds of thousands of Hondas with this engine running around racking up many miles whose owners are totally unaware of this issue. Apparently the reality falls somewhere in the middle, BITOG members tend to obsess about this issue, some forums ignore it mostly, others get militant. Personally, I believe that awareness and being pro-active is better if you plan on keeping a Honda long-term. I admit to being obsessive about maintenance, BITOG has value in not only discussions but sometimes in real verified data. Sometimes sifting through all the opinions is interesting.
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This is pretty much the conclusion I came to. 4k OCI with Pensoil Ultra Platinum since it is much much cheaper than Amsoil.
Well my tuned Hyundai 1.6T had some very very bad fuel dilution at one point, like 1.50+ qts of fuel within my dump point of of 3,000 miles. I wanted better oil when I was pushing 23 psi boost, and a ton fuel in my oil. You can use the cheaper oil if you like. I still have the exact same tunes when I had this bad dilution problem. I now am running 1/3qt-1/2 qt + fuel dilution in 3,000 miles in winter with warm ups. Which is fine since I had no real wear with the 1.50 qt time frame. FD is a none issue for me now zero worrys at this low level. I have UOAed it to death with the final verdict "no worrys". I think mine issue could of been carbon pinched rings as after the second change of Redline Performance 5w-30 Euro my dilution went to almost nothing and has came up a bit (in Minnesota winter) since I stop using Redline since their massive price increase(s). I have been using Motul 5w-40 8100-Clen Gen 2 for 2 years now. Last change had HPL 5w-40 Engine Cleaner added. I have one more Redline Performance 5w-30 Euro change in my stash for this late spring. Then 2 more changes Motul and I will be going to a run of HPL Euro 5w-30 for cleaning. Then Plan on using Castroil Euro Car 5w-30/or 5w-40 after that, with runs of HPL Euro for cleaning.
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is Supertech/Kirkland/Quaker State “any oil”? If so, what makes you believe it will not keep your rings clean in 5k interval?
I do wonder the aggressive driving is contributing to the fuel dilution, so I wonder if lighter throttle application would help especially before the cylinder walls and pistons are fully up to temperature.
Do yous see a problem w/ fuel injectors, I know that Honda had some problems w/ sticky injectors.
It's hard to really say honestly. It's often a case-by-case situation depending on engine type. The off-shelf oils may be perfectly fine at 5k mile intervals. I was surprised to see HPL clean existing deposits/carbon from engines using other synthetic oils. Wasn't expecting that. Mobil 1 is my preferred off the shelf brand. Will keep engines very clean.
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This guy has some nice Honda videos.
wemay
Site Donor 2023
Decent Synthetic at shorter intervals.
QSFS
Kirkland/ST/Amazon
Havoline LL ProDs
PZL FS
GTX FS
Mobil FS
QSFS
Kirkland/ST/Amazon
Havoline LL ProDs
PZL FS
GTX FS
Mobil FS
